My friend with my host family in the USA as an exchange student led me into a world where I would not have enjoyed American culture so much[ ]

ou have a chat with Tom—No, I was trying to ________ an opportunity to do so, but I couldn’t

How about your travel? — You can hardly imagine what difficulty we have had ______ the vast desert. [ ]

Not until they left school________how muchtheir teachers loved them and helped them.

I have always been honest and straightforward, and it doesn’t matter ______ I’m talking to.